Ozone-generator.



A. E. WALDEN.

OZONE GENERATOR.

APPLICATION FILED 00T. 23, 1912.

vPatented Jan. 14, 1913.

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OZONE GENERATOR. APPLICATION FILED 001223, 1912.

Patented Jan. 14, 1913.

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ALBERT E. WALDEN, 0F BALTIMORE, MARYLAND.

OZONE-GENERATOR.

Speccation of Letters Patent.

Application filed October 23, 1912. Serial No. 727,395.

To all whom it may concerny Be it known that I, ALBERT E. IVALDEN, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Ozone-Generators, of which the following is a specification.

This invention relates to improvements in ozone generators.

The invention consists of the novel construct-ion and arrangement of the parts and combination of parts hereinafter more fully sct forth in the following specification and pointed out-in detail in the claims.

In the accompanying drawings,-Figure 1 is a vertical sectional view of my invention. Fig. 2 is a bottom plan view of the dielectric and the inner electrode. Fig. 3 is a modification of my invention.

Referring to the accompanying drawings, forming part of this specification, and in which like reference numerals designate like parts throughout the several views, 1 desig l nates a shell constructed of iron, or other suitable material, and provided with metal partitions 2V and 3, and partitions 4 and 5 of insulating or other suitable material, forming the compartments 6, 7 8 and 9. lVithin the shell 1 is a cylindrical electrode 10 having its ends secured to the metal partitions 2 and 3, through which the electric current passes to the said electrode 10, and having communication with the compartments 7 and 9. Within the outer electrode 10is an inner electrode consisting of two tubes 11 and 12, the latter being closed at its lower end and its upper end being open and communicating with the compartment 7. The tube 11 projects through the partition 4, and is held in position thereby, and has its upper end open to the compartment 6, the lower portion of the said tube 11 projects down into the tube 12 and is open at its lower end. This tube 11 is also provided with one or more openings 13 leading to the compartment 7. The tubes 11 and 12. are held to their proper relative position by the pins 14 or other suitable means. Between the outer electrode 10 and the tube 12 of the inner electrode is a dielectric 15 of glass, micanite or other suitable material, the upper end of which is open and projects into the compartment 7, the lower end of said dielectric 15 is also open and projects into the compartment- 9. The said dielectric 15 rests on the cross-bar '16. of insulating material which is secured to the lower end of the rod 17, the upper end of which latter' is secured to the. bottom of the tube 12 of the inner electrode.l The said dielectric 15 is held in its proper relative position by the starshaped piece 30, which may be. of any suit.- able material. The electric current is applied to the inner' electrode and to the shell 1 through the wires 18 from any suitable source of supply.

The compartment 8 is provided with an inlet 19 and an outlet 20 through which water, or other suitable cooling medium, passes to and from said compartment, for the purpose of maintaining a suitable temperature therein. The compartment 6 is also provided with an inlet. 21, through which the air to be ozonized enters, and the compartment 9 is provided with an outlet 22 through which the ozonized air is conveyed away for any desired purpose and in any suitable manner. V

The operation is as follows:` Water, or other suitable cooling medium, passes through the inlet 19 to the compartment 8 and out through the outlet 20, thus maintaining a suitable temperature in the said compartment. A current of electricity of the desired frequency and potential is applied through the wires 18 to the shell 1 and the inner electrode comprising the tubes 11 and 12. The air to be ozonized enters the compartment 6, through vthe inlet 21, and passes down through the tube 11 to the tube 12, then up between said tubes 11 and 12 to the compartment 7, then down between the tube 12 of the inner electrode and the outer electrode 10 on both sides of the dielectric 15 to the compartment 9 from which point the vc-zonized air passes through the outlet 22 Vand is conveyed away f or any desired purpose and in any suitable manner. Again, only a portion .of the air may be passed to the bottom of the inner electrode,

.the remaining, or any other suitable portion,

passing out through the opening or openings 13 in the top of the tube 11 direct to the compartment 7 and then in both cases from the compartment 7 to the compartment 9, from which point it may be conveyed away for any desired purpose and in any suitable manner. These methods of passing the air, or other gas, through the apparatus, provide a method of controlling the tempera-` ture of the inner electrode by varying v the size of the opening, or openings, 13, or by Patented aan. i4, isis.

omitting said openings, in the tube 11 and thereby prevent-ing oxidation, corrosion and the formation of nitrate of aluminum, or any other aluminum compound.

In Fig. 3 I have shown a modification in which I employ three compartments 23, 24 and 25, instead of the two shown in Fig. l. In this n'iodification the outer electrode opens to the compartment 23, the outer tube 12 of the inner electrode opens into the compartment 24, and the inner tube 11a opens to the compartment 25. Air or other cooling medium enters the chamber 24 through the inlet 26 and passes down between the tubes 11a and 12a of the inner electrode and up through the inner tube 11a to the compartment 25, where it is discharged through the outlet 27. The air to be ozonized enters the compartment 23 through the inlet 2S and passes down on both sides of the dielectric a between the inner and outer electrodes 12a and 10, where it is ozonized and passes to the compartment 9a.

By the use of generators constructed in accordance with my present invention, the air or other gas to be ozonized can be enriched with oxygen, or other suitable gas, derived chemically or otherwise, and also by means of sodium peroxid, and of its.

compounds or suitable forms, or by other chemicals giving a suitable gas to be added to theair or gas to be ozonized, thereby enriching or controlling the ozone product in any manner.

Having thus described my invention, what I claim is:

1. In an ozone generator the combination of an outer shell, or casing, divided into a plurality of compartments, an outer electrodef secured in one of said compartments and having communication with the com. partments next above and below, an inner 4electrode projecting into the outer electrode and having communication with the two-upper compartments, the lower end of said inner electrode being closed, and a dielectric between the inner and o`uter electrodes.

2. In an ozone generator tle combination of an outer shell, or casing, divided into a plurality of compartments, an outer electrode secured in one of said compartments and having communication with the compartments next above and below, an inner electrode having communication with the upper compartment `and projecting down into the outerelectrode and having its lower end closed, and a dielectric secured be- .tween the inner-.and outer electrodes and open at its upperand lowerends. v v

3. In an ozone generator thelcombination of Aanr'outer shell, or casing, divided into a plurality of compartments, an outer electrode secured in one of said compartments and having communication with the compartments next above and below, an inner electrode comprising an inner tube the upper end of which opens to the upper compartment and an outer tube closed at its lower end and into which the lowero en end of the said inner tube projects, an a dielectric between the inner and outer electrodes.

Ll. In an ozone generator the combination of an outer shell, or casing, divided into a plurality of compartments, an outer electrode secured in one of said compartments and having communication with the compartments next above and below, .an inner electrode projecting into the outer electrode and having communication with the two upper compartments, two electric wires one of which connects with the outer shell and the other with the inner electrode and both of whichlead to a suitable source of supply,

- and a dielectric between the inner and outer electrodes.

5. In an ozone generator the combination of an outer shell, or casing, divided into a plurality of compartments, the upper one of which is provided with an inlet, the lower. one with an outlet and the next to the lower one with an inlet and an outlet, an outer electrode secured in the compartment having the inlet and outlet and having communication with the compartments next above and below, an inner electrode projecting into the outer electrode and having communication wlth the two upper compartments, and a dielectric between the inner and outer electrodes.

6. In an ozone generator the combination of an outer shell, or casing, divided into a plurality of compartments, an outer electrode secured in one of said compartments and having communication with the compart-ments next above and below, an inner electrode comprising an inner tube the upper end of which opens to the upper compartment and `provided with one or more apertures leading to the compartment next tosaid upper compartment and an outer tube closed at its lower end and into vwhich the lower open end of the said inner tube projects, and a dielectric between the inner and outer electrodes. Y

In 'testimony whereof I aiiix my signature in presence of two witnesses.

CHAPIN A. FERGUSON, EMMA BELL. 

